omap: mux: Add new style pin multiplexing code for omap3

[safe/jmp/linux-2.6] / fs / dlm / lock.c

diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 8cb9204..9c0c1db 100644 (file)
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -435,7 +435,7 @@ static int search_rsb(struct dlm_ls *ls, char *name, int len, int b,
 static int find_rsb(struct dlm_ls *ls, char *name, int namelen,
                    unsigned int flags, struct dlm_rsb **r_ret)
 {
-       struct dlm_rsb *r, *tmp;
+       struct dlm_rsb *r = NULL, *tmp;
        uint32_t hash, bucket;
        int error = -EINVAL;
 
@@ -2186,6 +2186,13 @@ static int validate_unlock_args(struct dlm_lkb *lkb, struct dlm_args *args)
                        goto out;
                }
 
+               /* there's nothing to cancel */
+               if (lkb->lkb_status == DLM_LKSTS_GRANTED &&
+                   !lkb->lkb_wait_type) {
+                       rv = -EBUSY;
+                       goto out;
+               }
+
                switch (lkb->lkb_wait_type) {
                case DLM_MSG_LOOKUP:
                case DLM_MSG_REQUEST:
@@ -2682,7 +2689,7 @@ static int _create_message(struct dlm_ls *ls, int mb_len,
           pass into lowcomms_commit and a message buffer (mb) that we
           write our data into */
 
-       mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, ls->ls_allocation, &mb);
+       mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, GFP_NOFS, &mb);
        if (!mh)
                return -ENOBUFS;
 
@@ -4505,7 +4512,7 @@ int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua,
        }
 
        if (flags & DLM_LKF_VALBLK) {
-               ua->lksb.sb_lvbptr = kzalloc(DLM_USER_LVB_LEN, GFP_KERNEL);
+               ua->lksb.sb_lvbptr = kzalloc(DLM_USER_LVB_LEN, GFP_NOFS);
                if (!ua->lksb.sb_lvbptr) {
                        kfree(ua);
                        __put_lkb(ls, lkb);
@@ -4575,7 +4582,7 @@ int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
        ua = lkb->lkb_ua;
 
        if (flags & DLM_LKF_VALBLK && !ua->lksb.sb_lvbptr) {
-               ua->lksb.sb_lvbptr = kzalloc(DLM_USER_LVB_LEN, GFP_KERNEL);
+               ua->lksb.sb_lvbptr = kzalloc(DLM_USER_LVB_LEN, GFP_NOFS);
                if (!ua->lksb.sb_lvbptr) {
                        error = -ENOMEM;
                        goto out_put;